PyQt5 QSpinBox – Getting average character width
In this article we will see how we can get the average character width of the spin box’s text. Average character width is basically the sum of all the character divided by the total number of character i.e the average width of glyphs in the font.
In order to do this we use averageCharWidth
method with the spin box’s QFontMetrics object.
Syntax : font_metrics.averageCharWidth()
Argument : It takes no argument
Return : It returns integer
Below is the implementation
# importing libraries from PyQt5.QtWidgets import * from PyQt5 import QtCore, QtGui from PyQt5.QtGui import * from PyQt5.QtCore import * import sys class Window(QMainWindow): def __init__( self ): super ().__init__() # setting title self .setWindowTitle( "Python " ) # setting geometry self .setGeometry( 100 , 100 , 600 , 400 ) # calling method self .UiComponents() # showing all the widgets self .show() # method for widgets def UiComponents( self ): # creating spin box self .spin = QSpinBox( self ) # setting geometry to spin box self .spin.setGeometry( 100 , 100 , 250 , 40 ) # setting range to the spin box self .spin.setRange( 0 , 999999 ) # setting prefix to spin self .spin.setPrefix( "PREFIX " ) # setting suffix to spin self .spin.setSuffix( " SUFFIX" ) # creating a label label = QLabel( self ) # making label multi line label.setWordWrap( True ) # setting geometry to the label label.setGeometry( 100 , 200 , 300 , 60 ) # getting font metrics f_metrics = self .spin.fontMetrics() # getting average character width avg_width = f_metrics.averageCharWidth() # setting text to the label label.setText( "Average Character width: " + str (avg_width)) # create pyqt5 app App = QApplication(sys.argv) # create the instance of our Window window = Window() # start the app sys.exit(App. exec ()) |
Output :
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